Henry’s law coefficient of hydrazoic acid

Eric A. Betterton, Jill L. Robinson

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


The Henry’s law constant, KH, of dilute aqueous hydrazoic acid, HN3, was determined experimentally for the first time as a function of concentration and temperature in a packed column. KH was found to be 12.0 ± 0.7 M atm-1 at 25 °C, m = 0.02 M ((8.4 ± 0.5) x 10-3kPa m3mol-1). The reaction enthalpy, DH, was found to be -31 ± 1 kJ mol-1. The results appear to be in good agreement with the only other published value for concentrated aqueous solutions at 30 °C.

Original languageEnglish (US)
Pages (from-to)1216-1219
Number of pages4
JournalJournal of the Air and Waste Management Association
Issue number11
StatePublished - Nov 1 1997

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Pollution
  • Atmospheric Science
  • Management, Monitoring, Policy and Law


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